(d) Whether or not Lessor shall have exercised, or shall thereafter at any time exercise, any of its rights hereunder with respect to the Aircraft, Lessor, by written notice to Lessee specifying a payment date not earlier than ten (10) days from the date of such notice, may demand, and Lessee hereby agrees to pay to Lessor on demand on the payment date specified in such notice, as liquidated damages for loss of a bargain and not as a penalty, the sum of any Rent due on or before such payment date plus the following amounts (together with interest, if any, on such amount at the Interest Rate from such specified payment date until the actual payment of such amount): (x) an amount equal to the aggregate remaining payments of Basic Rent due and owing through the scheduled Expiration Date specified in the Lease Supplement computed as of the payment date specified pursuant this Section 18(d); or (y) if Lessor has subsequently leased the Aircraft to a third party lessee, an amount equal to the